© Niklas Bildhauer , CC BY-SA 2.0 letter / August 01, 2009 MACC1 controls Met: What a difference an Sp1 site makes View in MDC Repository View in PubMed Authors U. Stein J. Smith W. Walther F. Arlt Journal Cell Cycle Citation Cell Cycle 8 (15): 2467-2469 DOI doi:10.4161/cc.8.15.9018 View in MDC Repository View in PubMed